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Hosting & Network

cor.gov runs on AS11394, with email via Microsoft 365.

Hosting network
AS11394AS11394
Managed DNS
Self-hosted / other
Email
Microsoft 365
IPv6 (AAAA)
Not enabled
CAA pinning
None

Sits alongside 10 other sites on AS11394. Stable here since we started watching (Jul 18, 2026).

DNS Records for cor.gov

HostnameTypeTTLPriorityContent
cor.govMX0cor-gov.mail.protection.outlook.com
cor.govTXT0v=spf1 ip4:198.17.195.25 include:transmail.net ip4:52.124.61.0/24 ip4:198.49.23.144 ip4:198.49.23.145 ip4:198.185.159.144 ip4:198.185.159.145 ip4:15.197.175.4 ip4:76.223.125.47 include:spf.mailjet.com include:spf.protection.outlook.com ~all
cor.govTXT0MS=ms50755925
cor.govTXT0cisco-ci-domain-verification=569eac4048fa14ab4b66d5214ddaba3d6323c9041424c62c893c7425f529e14c
cor.govTXT0apple-domain-verification=zvydvT31WGL4WDVT
cor.govTXT0cisco-ci-domain-verification=71368fe86eff3be9f4b0fb53329d9e4a77952606c97a35f0b4772a82d5e84d3c
cor.govTXT0duo_sso_verification=OwblKPo6BWX1FIwOkSZQijKQJUsVfGw6DS8ifSm7krNdhDrT33knymHjXYBnp2uC
cor.govTXT0MS=ms91791110
cor.govTXT0MS=ms44341185
cor.govTXT0cisco-ci-domain-verification=7eb7781f4e6056cdc6712e6b020914a7c41244774b2fb01d053d2a00b4066367
cor.govA0198.17.195.3
cor.govSOA172800seton.cor.net brian.cor.gov 2026082101 86400 7200 3600000 172800
cor.govNS0seton.cor.net
cor.govNS0hilcourt.cor.net

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About DNS Records

DNS (Domain Name System) records are instructions that provide information about a domain, including its IP addresses, mail servers, and other services. Common record types include:

  • SOA (Start of Authority) - Contains administrative information about the zone
  • NS (Nameserver) - Specifies authoritative nameservers for the domain
  • A (Address) - Maps a domain to an IPv4 address
  • AAAA - Maps a domain to an IPv6 address
  • CNAME (Canonical Name) - Creates an alias pointing to another domain
  • MX (Mail Exchange) - Specifies mail servers for the domain